Single trigger for double-barreled firearms.



A. A. STUTZMAN.

SINGLE TRIGGER POR DOUBLE BARREL@ PIRBARMS.

APPLICATION FILED MAY 26, 1908.

A. A. ISTUTZMAN. SINGLE TRIGGBR POR DOUBLE BARRBLED HREARMS.

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Pented May 18, 1909.

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APPLICATION FILED MAY 26, 1908.

w w www A. A. STUTZMAN.

SINGLE TRIGGER FOR noUBLE BARRELED mums.

APPLICATION FILED MAY Z6, 1908.

Patented May 181, 1909.

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main arm of aT-sheped shifting lever 22, the rear cross bar ol' which is centrally pivoted upon the bearing block 11, as indicated at 24. l ie lever is adapted to swing laters-ily in opposite directions on the pivot 21.- and is of sufficient resiliency to permit its main arm to move vertically to throw the finger 21 into and out of engagement with said recess 20. Mounted for transverse sliding movement on the forward end of the carrier bar in rear ofthe sliding block 16 is a detent har or plate 25 having downturned ends 26 to limit its reverse movements and to engage the pressure s rings 13 and 18a. This detent is pivota ly connected with the forwrd end of a lever 27, intermediately pivoted at 28 to the carrier bar 13 and carrying et its rear end an upwardly projecting pin 2Q engaging a longitudinal slot 30 formed in the main arm of the lever 22, by which the detent is adapted to be shifted laterally in one direction or the other by reverse movements of said lever 22, while the pin forms a guide for the lever 22 in its Also disposed on o posite sides of the carrier bar in rear of said detent 25 are releasing s rings 31 and 31 1 projecting upwardly from t e' trigger plate and having outwardly bent upper ends 32; These releasing springs pro- `ect above the plane of the lever 22 when the latter is in norma-l position with its linger 2l engaging the notch 20, and are adapted in the reverse movements of said lever to be laced' under tension thereby and to snap' eneath the same to raise the lever so es to throw the linger 21 out of engagement with the recess. By the reverse swinging movements of the lever 22, it will be understood that the bloc-li 16 may be moved-from a neutral position in either direction to bring the upstanding pin or lug 17 under the rear end of either senr 7 or 7, so that upon the pressure of the trigger 9, and consequent elevation of the forward end of the pivote-d carrier bar bythe pressure of the trigger thereon, the sear engaged by the lug will be rocked to release the cooperating hammer and permit the latter to be projected by its operating spring.

The bearing zfiloc'k 11 is formed with an upright extension 33 perforated for the passage of a bar 34 which is slidably mounted therein, said bar being forme-d at its rear end with a head 35 to limit its forward movement and having c stud 36 projecting therefrom. This stud receives and engages the forward end of a coiled pressure spring 37 engaging at its opposite end e supporting stud 38 on the stock l. The forward end of the bar 34 is provided with a reduced portion 39 at the rear of which are disposed inclined or convergmg shoulders 40, end pivotally connected, as at 41, with seid reduced portion of the bar is the cross-ber i2 ci rm or lever 43. The her 42 is disoosea at vertical movements.

senese the rear end ol" seid lever end is adapted hy the arrangement of the shoulders 40 to swing to dille/rent reverse positions on its pivot lll, the forward end of' the main arm of the lever7 which extends above the ,main arm of the shifting lever 22, being enlarged to form a contact or ring portion 44 adapted through the reverse swinging movements of said lever to be .disposed beneath the inner end of either ofthe sears, said portion 44 being supported by and adapted to slide upon the shoulder l5 :it the forward end of the carrier block above the plane of the upstanding pin or lug 17. Pivotally connected at their rear ends to the opposite ends of the arm or bar 4.2 are setting-or controlling rods 45 and 45 which are jitted to slide c their forward ends in openings 4G formed. in the front wall of the lock frame or ccsin0l end communicating withv the inner ends or the closed barrels. Each ofthese rods is formed near its forward end with a shoulder 4 7 and at its rcer end with a depending contact lng 48. The rods, being carried by the cro ber 42 of the lever 43, ere normally pressed forward by the action of ti'iespring 37, which projects the forward ends of seid rods into the rear ends of the closed barrels, said spring permitting rearward movement of the rods under pressure from the shells or car- .er

tridges inserted into the barrels, so that the resence or absence of a shel in either or oth barrels 'will atleet the parts of the mechanism to adjust the same for operation by the trigger, as hereinafter described.. ln practice, the forward ends of the rods muy be so formed that they will be engaged and pressed rearwardly by the ejector-s oi the empty barrels or the cartridges in the har-- rels when the latter cre loaded, but, in order to prevent the resistance which would thus he caused to the closing of the barrel, l j, 'el'- erably provide Ineens controlled by the sn ep lever 10 for retrecting the rods simultaneously with the locking detent controlled by seid lever and projecting the rods with. said detent when the barrels ere restored to liring position. ln the form shown the means referred to comprises a sliding pressure bar or head 49 movable in slots 5() in a pair i of spaced bifurcated guide arms 5]. snitably supported et the front end of the lock casing, seid bar also carrying guide pins 52 movable in slots 53 in the upper portions of said bifurcated arms. The ends of the bar are arranged to bear loosely against the shoulders 4f? of the rods Ll5 and 45, so that; both rods may be simultaneously engaged and forced rearwardly to a sufhcient extent lto pernnt closing of the barrels without resistance,

while allowing either rod to have a greater range of movement independently when engaging a cartridge inserted in the particular barrel ceopereting therewith. Extending forwerdly from ar is a lug 5e eng the top plateof the loch frame and con-l -A selective device' is nected with the lever 10, bywhich said lever vwhen swung outwardly to unlock the barrels will press 'the rods inwardly against the resistance of the spring 37,;the cfinger 55 in this 'operation moving rearwardly and en` gaging the lug 54 and imparting correspond-- ing movement to the bars, .as will be readily understood. When the lever 10 is' swung back to lockingposition the linger 55 will be retracted, allowing the rods to be again projected forward by said spring 37.

' provided .to control the adjustment of the lever22, and comprises a bar or strip 57 disposed transversely elovi7 the levers 22 and 43 and resting upon the rear end of the carrier bar 1 3 and against the front face of (the cross bar or head of the shifting lever 22. This bar 57 is rovided at its opposite ends with contact ugs 58 and' 58El arranged to bear against the front surface of 'the cross-bar 23 of the lever 22 and adapted to cooperate with the lugs 48 on the setting bars 45 and 45a. of the bar 57 is a stem 59 projecting downward through a\transver se slot 60 forrned in the trigger-plate 3, and having a head 61 bridging said slot and resting upon the uper surface of said late'and an o erating hutten or knob 62 be ow the plate, t 1e knob and head permitting the sternY to both slide and rotate in said slot for the adjustment-s of lsaid selective device.

The construction in general having been described the operation is las follows z`Assuming that a single barrel of the gun is loaded and tired at a time, it will be understood that when a cartridge av is inserted in the right barrel and the breech closed, both controlling rods 45 and 45a will be forced rearwardly against' the resistance ot' the spring 37, the rod 45 being held back by the pressure of the cartridge, whereby the firing arm 43 will be swung to the right, as shown in Fig. 2, with its iree end 44 disposed beneath the end of the scar 7, so that when the trigger 9 is pulled the upward movement of the carrier block 13 will cause said sear to be moved to release the hammer 5 for the diseha-r e of the cartridge. if the I'cartridge should have been inserted in the left barrel, the` ressure oi such cartridge on the rod 45a would cause the parts referred to to be swung in the reverse direction to bring the end 44 of the arm 43 beneath end of the sear 7L for actuation of the hammer 5', :is will be readily understood. Hence, it will be seen that the mechanism will be automatically set to discharge a cartridge inserted in either barrel. Upon the breaking of the breech the spring 3 7 restores the parts to normal position.

`When the cartridges a. and (I/ are inserted in both barrels, the mechanism is automatically set so tlultit may be controlled by thc Depending from the centerk selective device to discharge either cartridge first and automatically adjust the mechanism-for the discharge of the other cartridge.

When the breech 45a Will bemoved is closed the rods 45 and against 'the resistance of the spring 37. In this Ioperation the firing arm 43 will maintainl its neutral position, but the contact ings 48 on the rods will be brought into position to coperate with the selective device for the adjustment of the .upstanding lug or pin A17. Assuming that the o erator desires to discharge the right barre irst, the button 62 is grasped and pushed to the right, whereby the; lug 58 on the bar 57 isbrought into contact with the lug48 of bar 45 and forced rear.- Wardly thereby,.thus causing the right hand vend of the selective bar 57 to bear upon the right hand end of the`cross 'b ar 23 of lever '22 and to swing said lever correspondingly, the stein 59 of the selective device having both a sliding and pivotal movement in the slot 60 'in this operation. 'lhe arm 2 2 will thus be swung to the right,

the spring 18 outwardly and brings'the pin 17 to a positionbelow the sear v7 against the resistance of said spring. ln such swinging movement of; the lever 22, the lever 27 will swung in the reverse direction to slidev the detent 25 tothe left, so that said detent will press the spring 18l1 outward and place it under a tension corresponding to that oi' the spring 18 to maintain the parts in the prescribed position. In its swinging movement 'the lever 22 also engages and forces the releasing spring 31 outwardly so as to? place it under tension, in which position the parts are maintained 4until the ig'igger is pulled. YWhen the forward end of the carrier bar i3 is tilted upward by thetrigger, the lug 17 enously the spring 31snaps under the elevated arnr22, rso 'that upon the release ol' the trigger, and consequent descent of the carrier bar while the lever 22 remains supported -by said spring, the notched portions of the block 16 wi l be drawn from engagement with the finger 21, thus 4allowing thespring 18 to shift the block 16 to the lel't, as shown in Fig. 4, to bring the lug 17 below the sear 7, thus automatically setting the mechanism so that upon the subsequent o erationol' the trigger 9 the cartridge a. in t e left barrel will be fired. When the breech is o )ened for the ejection ol' the discharged sh'el s and the insertion ol'l new cartridges, all oi' the parts, except the selective device, will be re position by .the action of the spring' 37, thc selective device simply swinging hack to a straight transverse position with'the arm of the lever 22, but maintaining its laterallyv i shifted position so that it will again be swung ,l rearwardly by the lug 48 olI the rod 45 when rearwardly to an equal de-v gree by the pressure of the cartridges thereon as shown Fig. '3, carrying with 1t the sliding block. 16, which forces gages and operates the sear 7, and siinultane turned to normal Cli ' -pliieed under teiiei lv ,et lor the l ie lniirels es abovedescribed.

eiiiiiiieled iii im obvious time may lm n "i infirmer lijf :i .l ediustiiieiit oi 'the selettive 'Leviee ti;- tlie lelt its lue` 552 e mi; i t le liar i5 es JL'stood it will accorat when llotli barrels ere h,eli closed7 tire lever 2? end correspondingly will operate ivitl t will be "n iiifi'ly lie emitir/ent loaded zuid. the lui will be shifted to the sliilt the block i@ to lili" tlie seiir 7a, the e i8@ and EN heilig f lv' the pieislire ol tlie lilocl; tied lever, li ille det-eri 35 is sliiltod to the i'bit to pli f the siii-ii 1 f?, under teueieii, :so 'tit uilen the iiriiig ol' tlie Cartridge iii the lelt Barrel the )el ts will oe eiitoiii all)v ai ljii )os yloir for Clie diselie-rge ol' the e: it lierre-l iii e maiiiier equivalent l liel'ore ilI l.

lii order lie Csi lieiiigtilted :iler tlio diSel" el one barrel, .eo zie to ressiil "i x pessiliili ineeliiiiii i of j"lie sliil't lire secoiie'l ice controlled by 'the ly liold tlie operati/ieri. This f' or det-exit 6l pivoted 62- :it tlie top ol the el projection 63 J er iii'oiee'lioii deg le iieriiizilly lield ii out el eiigegeiiieiit 'tv end Vtlie roiiipriee l et its upper lool; ee ii U i Y irlieii tlie l iv 4o ion oll gravity :md tlie action olf the siii-ing leaving tlie liar 125 l'ree te lee ilted lor ille diselizirge ol 'Lilie iseeoiid ieri rflirt` de or 0ll zi premelure explosion ol' tl e second l zirrel :filter tlie Vliiet luie l m lired will lie prevented in e siniple inziiiiier.

lle-'ving lilies iiillj, described tlie invention, wil-it is. claimed :is new iszml. lii a, ireur-in ol ille el 'mieter described,

liriiig iiiecliiinism eiseocizited with mieli lier rel nig tlie smilie, iiioiiiited ou l riioviilile failli-port, ii trigger lor oper-:it-

:i iiriire' element iiioviil'ily l support lor adjustment to ir iiidepeiideiitl)` operateired to the lelt barrel ig ille lug l? luider im r l'roiiiliiiizitioii o? i firing iiieolieiiieiii for ek rel, i @Controlled laterally Sv 'li'ruig' device movable to reveree posit Y Us o. .lining cooperate therewith, sliding controlling rods mehr; iisiii. Y

Si. .iii i iioiiilile-iiiirreled 'limer-m, the com i liiriziifioii of :i 'tiring ii'ieeliziiiieiii for mieli. lmr ret, ai til'iiig Support, e trigger lorelevritrng tlie saune, n slit e carried ij, said support, :i

:spring ,er iieriiie-lljy7 holding tlie slidei 1-,-v2i1' l, si iii' ie" lever i'iivotzilly roiiiiected with the si r reverse iiioveiiieilt to cooperate with eitlier liriiig iiieelimiiem; slid.' fig rode for siii` .ing said lever iii reverse direction :md :arranged to lie forced reeriverdly under euejiigeriierit with f tertridges ii; tlie barrels., i second 'firing element laterally movable lor edjusti'neiit on tlie tiltiiil support, zi Selective device i-,operetiiigm .itli the rods for lidjusting seid second firing element lo one of operative '.oiis, iiito el im i j; suoli :uliiistiiieiit to sliit Seid second 'iiriiigr element to .l other operative poeitioii iil'ter lo =il ope itioii tliereol iii, tile Comiiieliidiiig :i rrier, e, swing i liriiig device' mounted r lor independent sliding iiiove-A lling rods operated by cartridges i ceri iiieil, contro iii the bei-roll, or adjusting said iii-ing device autoiiia-ticaillj/ to revei'ee position, :i second liiideiellv iiiovelile i'iriiig` device on the carrier, zi slii" lever lor operating the seme, i selective device erreiiged to cooperate with either rod to move said lever for adjusting said laterally movable Vliriiig device to operate with either Sear, and :iutoiiizitio ineens for disconnecting Seid shifting lever from eugegeiiioiit with the laterally movable firing; device iipoii the operation of one mid adjusting it to the reverse position for the operation ol tlie other Sear.

5. lli a, lli-eerie el the elierecter de` cribed, ii. liriiig mechanism for erich barrel, triggeroperzited aetiizitiiig ineens therefor adjusti ile lor single barrel iirlxig` oy the Cartridge l der barrel for oiieietiiig the {iririeelieiiisiii eoperzitiiig t ierewitli, i see trmifir op L and riiitoiiiii'tie iiieziiis set i CIK ive means for adjusting said element for discharglng either barreLand automatic means foi-adjusting said element after firing said including a scar, a tilting carrier, a longii tudinally sliding laterally swingingiiring device mounted for' movement independent of i the carrier, a spring for permitting a yielding movement thereof, sliding rods .connectedl witllsaid firing device forswin ing the same in reverse direction and/"contro led in movement by cartrnlg'es Within the barrels, a

second tiring device laterally slidable on the carrier, opposing springs for normally main'- taining the same-in a neutral osition, a pivoted laterally swingin shi ting lever loosely engaging said slidaberin dev'ice, a detent ozp'erated by said lever an 'movable in opposite directions thereto to govern the action of said springs, oppositely disposed.

. detent springs each adapted Vto be` placed Vunder tension by the movementvof the shift? ing lever in its direction and to release said lever from engagement with the sliding` tiring device upon the discharge of the as- 1 sociated barrel, and a selective device pivotaily and slidably mounted upon the arm for reverse movements and adapted to cooperate with therods to shift said shifting lever in onevdirection or the other to establish a desired order ol iiring.

7. ln a doubie-barreled firearm, the com-- bination. of independent tiring devices for the lurels, each including a Sear, a tilting car` ner adapted tobe operated by the trigger, a yieldablymonnted ring device adapted to be adjusted to diliierent 'positions to cooperate with the respective sears, sliding rods for adjusting said device and controlled by the presence or absence of cartridges in the barrels, a laterally movable firing device upon the tilting carrier, springs formaintain# [ing the same in a determined osition, a

i laterally swinging shifting:r lever oosely en-Y i aging said liring device, a detent actuated )y said lever to control said springs, opc l positely arranged releasing springscoperatling with the lever to disengage it when i elevated-from'the sliding firing device, contact devices on the rods, Vand ashiftable selective de vice movable to reverse positions 'aand vcontrolled by said contact devices for shifting the said shifting lever.

yIn a double-barreled firearm, a firing device foreach barrel, shil'table mechanism adaptedl to be operated by a single trigger :L''ffor 'actuating either. firing device, said -mechanism including sliding rods adapted to 'pro'cct into the closed barrels and to be shifted by cartridges therein, a snap lever, and means operated by said snap lever on its opening r lnovenicnt to shift said rods in- `wardly, said means being adapted to permit normal independent sliding movements of the' rods., i

l), .A double-lnu'reled iirearms comprising, in conbination with a firing mechanism for each barrel, automatically set iiring means adjustable for use in connection with either lil-ing mechanism by "the Jpresence of a cartridge in the associated barrel, anassociated firing meclianismadjbistable to cooperate with the aforesaid tiring mechanisms when both barrels are charged to 'successively lire the cart-ridgcs therein, selective means for adjusting vsaid mechanism to lire either barrel first, and means for automatically shifting said mechanism to fire the second barrel-after thc irst i barrel has been fired.

i ln testimony whereof l allix my signature in presence ol"twojivitnesscs,

ALFRED A. S'lUlZMN. `Yitncsscsz SAMUEL FREEMAN, ALLEN '/J. S'rU'rZMAN.

i y i l i single trigger 'firing mechanism for' 

